EP0380439A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Scroll compressor with axial compliancy
Assignee: Carrier Corp
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Filing: 1990-01-23
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Granted: —
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Expires: 2010-01-23
Abstract
Abstract Axial compliancy is achieved in a scroll compressor (10) by providing a fluid pressure bias to the back of the orbiting scroll. The fluid pressure bias is supplied by one or more pockets (50,52) configured to combine the efficient use of the available area with ease of manufacture.
Inventors
- 👤 Howard Henry Fraser
- 👤 Shahrokh Etemad
- 👤 William Robinson Lane
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-05 17:35
CPC Classifications
F; F04; F04C; F04C27/00; F04C27/005; F04C18/00; F04C18/02; F04C18/0207; F04C18/0215; F04C23/00; F04C23/008
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
119 words
In a hermetic scroll compressor having a fixed scroll, an orbiting scroll, a crankcase and a crankshaft an axial compliance structure characterized by: a generally flat surface with pocket means (50 and 52; 150 and 152; and 250) formed therein and surrounded by grooves (42 and 43; 142 and 143; 242, 243 and 244) with seal means (66 and 68; 166; 266 and 268) therein; fluid pressure supply means (40-3, and 40-4; 140-3 and 140-4; and 240-3) for supplying pressurized fluid to said pocket means for providing an axial force to said orbiting scroll whereby when said orbiting scroll is driven by said crankshaft said orbiting scroll engages said seal means and coacts therewith to isolate the pocket means.
Claim 2
Dependent Claim
119 words
In a hermetic scroll compressor having a fixed scroll, an orbiting scroll, a crankcase and a crankshaft an axial compliance structure characterized by: a generally flat surface with pocket means (50 and 52; 150 and 152; and 250) formed therein and surrounded by grooves (42 and 43; 142 and 143; 242, 243 and 244) with seal means (66 and 68; 166; 266 and 268) therein; fluid pressure supply means (40-3, and 40-4; 140-3 and 140-4; and 240-3) for supplying pressurized fluid to said pocket means for providing an axial force to said orbiting scroll whereby when said orbiting scroll is driven by said crankshaft said orbiting scroll engages said seal means and coacts therewith to isolate the pocket means.
Claim 3
Dependent Claim
43 words
The axial compliance means of claim 1 wherein said pocket means is two pockets (50 and 52) and said pocket means, groove (42, 43) and seal means (66 and 68) are generally kidney shaped and symmetrically located with respect to said crankcase means.
Claim 4
Dependent Claim
119 words
In a hermetic scroll compressor having a fixed scroll, an orbiting scroll, and a crankcase, a method for manufacturing axial compliance structure comprising the steps of; forming pocket means (50 and 52; 150 and 152; 250) in a generally flat surface of said crankcase; forming grooves (42 and 43; 142 and 143; 242, 243 and 244) surrounding said pocket means; forming fluid pressure supply means (40-3 and 40-4; 140-3 and 140-4; and 240-3) in the crankcase terminating in the pocket means; locating seal means (66 and 68; 166; 266 and 268) in the grooves; securing the crankcase to the fixed scroll with the orbiting scroll therebetween and in engagement with the seal means to thereby isolate said pocket means.
Claim 5
Dependent Claim
119 words
In a hermetic scroll compressor having a fixed scroll, an orbiting scroll, and a crankcase, a method for manufacturing axial compliance structure comprising the steps of; forming pocket means (50 and 52; 150 and 152; 250) in a generally flat surface of said crankcase; forming grooves (42 and 43; 142 and 143; 242, 243 and 244) surrounding said pocket means; forming fluid pressure supply means (40-3 and 40-4; 140-3 and 140-4; and 240-3) in the crankcase terminating in the pocket means; locating seal means (66 and 68; 166; 266 and 268) in the grooves; securing the crankcase to the fixed scroll with the orbiting scroll therebetween and in engagement with the seal means to thereby isolate said pocket means.
Claim 6
Dependent Claim
25 words
The method of claim 3 wherein the step of forming pocket means includes the forming of two kidney shaped pockets symmetrically located in the crankcase.
References Cited (Backward Citations)
No citation records indexed.
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